华为OJ汽水瓶

刺骨的言语ヽ痛彻心扉 2022-06-17 00:30 207阅读 0赞

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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 描述</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> <pre style="overflow:hidden; font-family:monospace,monospace; font-size:1em; white-space:pre-wrap; word-wrap:break-word; line-height:24px"><p style="margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px"><span style="white-space:normal">有这样一道智力题：“某商店规定：三个空汽水瓶可以换一瓶汽水。小张手上有十个空汽水瓶，她最多可以换多少瓶汽水喝？”答案是5瓶，方法如下：先用9个空瓶子换3瓶汽水，喝掉3瓶满的，喝完以后4个空瓶子，用3个再换一瓶，喝掉这瓶满的，这时候剩2个空瓶子。然后你让老板先借给你一瓶汽水，喝掉这瓶满的，喝完以后用3个空瓶子换一瓶满的还给老板。如果小张手上有n个空汽水瓶，最多可以换多少瓶汽水喝？</span><br style=""></p></pre> </td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 知识点</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> 循环</td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 运行时间限制</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> 0M</td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 内存限制</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> 0</td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 输入</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> <p style="margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px"> <span style="">输入文件最多包含10组测试数据，每个数据占一行，仅包含一个正整数n（1&lt;=n&lt;=100），表示小张手上的空汽水瓶数。n=0表示输入结束，你的程序不应当处理这一行。</span><br style=""> </p> </td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 输出</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> <p style="margin-top:0px; margin-bottom:0px; padding-top:0px; padding-bottom:0px"> <span style="">对于每组测试数据，输出一行，表示最多可以喝的汽水瓶数。如果一瓶也喝不到，输出0。</span><br style=""> </p> </td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 样例输入</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> 3 10 81 0</td> 
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   <th style="padding:8px 0px; font-weight:normal; width:86px; margin:1px; border:2px solid rgb(255,255,255); background-color:rgb(207,235,252)"> 样例输出</th> 
   <td style="padding:8px 20px; word-break:break-all; word-wrap:break-word; border:2px solid rgb(255,255,255); background-color:rgb(226,243,253); width:872px"> 1 5 40</td> 
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#include <iostream>  
    #include <string>  
    #include <vector>
    #include <algorithm>
    #include <map>
    //#include "Customer.h"
    using namespace std;
    
    int getCount(int n)
    {
    	int count = 0;
    	int empty = n;
    	while (empty > 1)
    	{
    		if (empty == 4)
    		{
    			count += 2;
    			break;
    		}
    		if (empty == 2)
    		{
    			count++;
    			break;
    		}
    
    		n = empty / 3;
    		count += n;
    		empty = empty % 3 + n;	
    	}
    
    	return count;
    }
    
    int main()
    {
    	int n;
    	while (cin >> n)
    	{
    		if (n == 0)
    			break;
    		cout << getCount(n) << endl;
    	}
    
    	return 0;
    }